Lyft + IFTTT requests. Cleanup start. Separated config file

main.lua

@@ -6,6 +6,7 @@ local pwm_pin = 1
 local pwm_timer = 1
 local pwm_freq = 500
 local pwm_max_bright = 1023
+local config = nil -- sensitive data loaded at runtime
 
 function debounce (func)
     local last = 0
@@ -21,7 +22,29 @@ function debounce (func)
 end
 
 function onChange ()
-    print('LYFT OFF!')
+  print('LYFT OFF!')
+  http.post(
+    'https://api.lyft.com/oauth/token',
+    'Content-Type: application/json',
+    '{"grant_type": "refresh_token", "refresh_token": "' .. config.refresh_token .. '"}',
+    function(code, data)
+      debug_message('refresh status code: ' .. (code or 'nil'))
+      debug_message('refresh resp data: ' .. (data or 'nil'))
+
+      openBrace, closeBrace = string.find(data, '^{.*}')
+      json_data = cjson.decode(string.sub(data, openBrace, closeBrace))
+      for k,v in pairs(json_data) do print(k, v) end
+
+      http.get(
+        'https://maker.ifttt.com/trigger/lyftoff/with/key/' .. config.ifttt_event_key,
+        nil,
+        function(code, data)
+          debug_message('status code: ' .. (code or 'nil'))
+          debug_message('resp data: ' .. (data or 'nil'))
+        end
+      )
+    end
+  )
 end
 
 function startServer()
@@ -59,11 +82,17 @@ end
 function onStart()
   debug_message('onStart')
 
-  -- register PWM and set low
-  -- tmr.unregister(pwm_timer)
+  debug_message('onStart: reading config')
+  file.open('config.json')
+  config = cjson.decode(file.read())
+  file.close()
+
+  debug_message('onStart: enable pwm')
   pwm.setup(pwm_pin, pwm_freq, 0)
   pwm.start(pwm_pin)
-  -- pwm.stop(pwm_pin)
+
+  debug_message('onStart: connecting')
+  wifi.sta.config(config.ssid, config.pwd)
 end
 
 function pwm_fadein()